ビジネスやお気に入りなどのエリアの選択に基づいて、自分の場所の地図を表示したい。
検索に次のインテントを使用して、Androidの地図に結果を表示します。
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps"));
startActivity(intent);
マップの場所をお気に入りとしてクリックすると、その場所が私の場所に表示されます。
Androidのカテゴリに基づいて場所を分割するにはどうすればよいですか？
エリアの選択を取得するには、placeapiを使用する必要があります。
ステップバイステップ、
場所の最寄りの場所のリストを取得する方法。
ステップ1：PlaceAPIを取得するためのAPIコンソールに移動します
https://code.google.com/apis/console/
[サービス]タブで選択します
場所サービスで
次に、[APIアクセス]タブを選択して、APIキーを取得します
これで、場所を取得するためのAPIキーができました
今プログラミング中
*ステップ2* ：最初にPlace.javaという名前のクラスを作成します。このクラスは、Placeapiによって提供されるplaceのプロパティを含むために使用されます。
package com.android.code.GoogleMap.NearsetLandmark;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONException;
import org.json.JSONObject;
public class Place {
private String id;
private String icon;
private String name;
private String vicinity;
private Double latitude;
private Double longitude;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getIcon() {
return icon;
}
public void setIcon(String icon) {
this.icon = icon;
}
public Double getLatitude() {
return latitude;
}
public void setLatitude(Double latitude) {
this.latitude = latitude;
}
public Double getLongitude() {
return longitude;
}
public void setLongitude(Double longitude) {
this.longitude = longitude;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getVicinity() {
return vicinity;
}
public void setVicinity(String vicinity) {
this.vicinity = vicinity;
}
static Place jsonToPontoReferencia(JSONObject pontoReferencia) {
try {
Place result = new Place();
JSONObject geometry = (JSONObject) pontoReferencia.get("geometry");
JSONObject location = (JSONObject) geometry.get("location");
result.setLatitude((Double) location.get("lat"));
result.setLongitude((Double) location.get("lng"));
result.setIcon(pontoReferencia.getString("icon"));
result.setName(pontoReferencia.getString("name"));
result.setVicinity(pontoReferencia.getString("vicinity"));
result.setId(pontoReferencia.getString("id"));
return result;
} catch (JSONException ex) {
Logger.getLogger(Place.class.getName()).log(Level.SEVERE, null, ex);
}
return null;
}
@Override
public String toString() {
return "Place{" + "id=" + id + ", icon=" + icon + ", name=" + name + ", latitude=" + latitude + ", longitude=" + longitude + '}';
}
}
次に、 PlacesServiceという名前のクラスを作成します
package com.android.code.GoogleMap.NearsetLandmark;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class PlacesService {
private String API_KEY;
public PlacesService(String apikey) {
this.API_KEY = apikey;
}
public void setApiKey(String apikey) {
this.API_KEY = apikey;
}
public List<Place> findPlaces(double latitude, double longitude,String placeSpacification)
{
String urlString = makeUrl(latitude, longitude,placeSpacification);
try {
String json = getJSON(urlString);
System.out.println(json);
JSONObject object = new JSONObject(json);
JSONArray array = object.getJSONArray("results");
ArrayList<Place> arrayList = new ArrayList<Place>();
for (int i = 0; i < array.length(); i++) {
try {
Place place = Place.jsonToPontoReferencia((JSONObject) array.get(i));
Log.v("Places Services ", ""+place);
arrayList.add(place);
} catch (Exception e) {
}
}
return arrayList;
} catch (JSONException ex) {
Logger.getLogger(PlacesService.class.getName()).log(Level.SEVERE, null, ex);
}
return null;
}
//https://maps.googleapis.com/maps/api/place/search/json?location=28.632808,77.218276&radius=500&types=atm&sensor=false&key=your_api_key
private String makeUrl(double latitude, double longitude,String place) {
StringBuilder urlString = new StringBuilder("https://maps.googleapis.com/maps/api/place/search/json?");
if (place.equals("")) {
urlString.append("&location=");
urlString.append(Double.toString(latitude));
urlString.append(",");
urlString.append(Double.toString(longitude));
urlString.append("&radius=1000");
// urlString.append("&types="+place);
urlString.append("&sensor=false&key=" + API_KEY);
} else {
urlString.append("&location=");
urlString.append(Double.toString(latitude));
urlString.append(",");
urlString.append(Double.toString(longitude));
urlString.append("&radius=1000");
urlString.append("&types="+place);
urlString.append("&sensor=false&key=" + API_KEY);
}
return urlString.toString();
}
protected String getJSON(String url) {
return getUrlContents(url);
}
private String getUrlContents(String theUrl)
{
StringBuilder content = new StringBuilder();
try {
URL url = new URL(theUrl);
URLConnection urlConnection = url.openConnection();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()), 8);
String line;
while ((line = bufferedReader.readLine()) != null)
{
content.append(line + "\n");
}
bufferedReader.close();
}
catch (Exception e)
{
e.printStackTrace();
}
return content.toString();
}
}
次に、最寄りの場所のリストを取得する新しいアクティビティを作成します。
/ ** * * /
package com.android.code.GoogleMap.NearsetLandmark;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.drawable.Drawable;
import android.location.Address;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.android.code.R;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
/**
* @author dwivedi ji *
* */
public class CheckInActivity extends ListActivity {
private String[] placeName;
private String[] imageUrl;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
new GetPlaces(this,getListView()).execute();
}
class GetPlaces extends AsyncTask<Void, Void, Void>{
Context context;
private ListView listView;
private ProgressDialog bar;
public GetPlaces(Context context, ListView listView) {
// TODO Auto-generated constructor stub
this.context = context;
this.listView = listView;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
bar.dismiss();
this.listView.setAdapter(new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, placeName));
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
bar = new ProgressDialog(context);
bar.setIndeterminate(true);
bar.setTitle("Loading");
bar.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
findNearLocation();
return null;
}
}
public void findNearLocation() {
PlacesService service = new PlacesService("past your key");
/*
Hear you should call the method find nearst place near to central park new delhi then we pass the lat and lang of central park. hear you can be pass you current location lat and lang.The third argument is used to set the specific place if you pass the atm the it will return the list of nearest atm list. if you want to get the every thing then you should be pass "" only
*/
List<Place> findPlaces = service.findPlaces(28.632808,77.218276,"atm");
// Hear third argument, we pass the atm for getting atm , if you pass the hospital then this method return list of hospital , If you pass nothing then it will return all landmark
placeName = new String[findPlaces.size()];
imageUrl = new String[findPlaces.size()];
for (int i = 0; i < findPlaces.size(); i++) {
Place placeDetail = findPlaces.get(i);
placeDetail.getIcon();
System.out.println( placeDetail.getName());
placeName[i] =placeDetail.getName();
imageUrl[i] =placeDetail.getIcon();
}
}
}